Dead battery on 98 merc mystique. cant shift to

Do your brake lights work? Your brake pedal switch supplies power to the shift solenoid to alow you to shift. When you push the pedal do you here a clicking in the Shifter? The fuse might have blown, it is in the interior fuse panel possibly listed as shift interlock.

your battery must have low voltage get new battery

on the left side on you shift stick is a small cap. remove the cap and push the button with a key and shift to neutral. make sure you have the parking brake ready to prevent the car from rolling.your food brake wont hold good if the engine don't run
the best is to replace or recharge the battery.

next to shifter arm, is a small port, open and use your finger and press down, this will let you move the shifter to neutral

Its a electric solonoid so charge the battery up first or put a booster box on it just to get it into neutral

Since the car is automatic, it becomes quite difficult to shift gears with a dead battery. Plus, if parked in a garage, there is no room to jump start the car by using another vehicle. If you face such a dilemma, do the following:
1. The gear or shifter has a cap on its bottom - you have to wedge it open (it can possibly break)
2. Now you will see a small hole, put a screwdriver or any slim object in it, and press and hold the button within
3. You will hear a click-now the gearbox has been unlocked
4. Shift to neutral
5. If the shifter cap has broken, get a new one from the aftermarket.

If you have a shifter on the floor look for a small cover. It will allow you access to a shift release manual button. If not check the manual it will show you.

Nearly all modern cars with a column, console or floor-mounted shift knob are equiped with a shifter level lock release button. Look for a small hole or plastic plug, usually to the right side of the shift lever or on rare occassions above or below the shift knob. It should be just large enough to stick the ignition key into the hole and push on the release button. While holding the release button with one hand, have foot on the brake or parking brake set and gently bress the shift knob button and move to neutral. I spent two years working for ADT Automotive at Mid-America Auto Auction and out of over a quarter million automatic transmision cars I have seen, nearly all have this feature.

go to autozone and have them do a charging system check these services r free and will identify the problem 4 u

If you need further help, I’m available over the phone at https://www.6ya.com/expert/michael_00678fd4800d19c5

I had a similar problem with my 98 mystique when i bought it used. I had no overdrive and was lucky to find a honest transmission shop that found the problem. In my case the overdrive was unplugged. They plugged it back in,cleared the computer and changed my tranny fluid and i was good to go. You should be revving about 2400rpm at 65mph. The other thing you can check is to make sure that the wires that go from the overdrive button are not broken off or coroded.